Portfolio Drawdown Singapore: Understanding Maximum Drawdown and Recovery
Portfolio drawdown measures the peak-to-trough decline in portfolio value during a specific period. Maximum drawdown (MDD) is the largest such decline over the entire investment history. For Singapore investors holding S-REITs, equities, and ETFs, understanding drawdown helps set realistic expectations and size portfolio risk appropriately. This article is educational only.
What Is Portfolio Drawdown and How Is It Measured?
Drawdown (%) = (Peak Value − Trough Value) / Peak Value × 100. Example: a $500,000 portfolio falling to $350,000 = 30% drawdown. Related metrics include Maximum Drawdown (MDD) — the worst peak-to-trough decline over the full investment period; Recovery time — how long to recover to the previous peak; and Calmar Ratio — annualised return divided by MDD, measuring risk-adjusted performance.
Historical Singapore Market Drawdowns
Approximate historical drawdowns: iEdge S-REIT Index — approximately 40% during COVID-19 (Feb–Mar 2020), 25% during 2022–2023 rate hike cycle. STI (Straits Times Index) — 47% during GFC (2007–2009), 30% during COVID-19. Global equity ETFs (e.g. VWRA) — 35% during COVID-19 crash. These figures help calibrate: a 60% S-REIT / 40% bond portfolio could realistically experience 25–30% MDD during a severe stress event. Related: Singapore REIT ETF Guide.
Recovery Time: The Often-Overlooked Risk
The STI took approximately 4 years to recover from GFC lows (2009–2013). The S-REIT sector recovered from COVID-19 drawdown within ~18 months (by late 2021). The 2022–2023 rate hike drawdown for S-REITs has been slower to recover due to structural changes in interest rates. For retirees withdrawing from portfolios, a prolonged recovery combined with ongoing withdrawals defines sequence of returns risk. This is why a cash buffer (2–3 years of expenses in SSBs/T-bills) is critical.
Managing Portfolio Drawdown Risk in Singapore
Diversify across sectors — don’t concentrate solely in S-REITs; add Singapore dividend stocks, global ETFs, and fixed income. Set a drawdown threshold in advance — decide what action to take at different levels (e.g. rebalance at –20%, stop discretionary spending at –30%). Keep CPF OA as a low-risk buffer — it earns 2.5% with no drawdown risk. Enforce position sizing — no more than 10–15% of total portfolio in a single REIT or stock. Tools: S-REIT Total Return Calculator | Gearing Ratio Calculator.